Home / 672,463,984.20-1,008,695,976.30-328,090,216.20

Finding the Fourth Proportional to 672,463,984.20, 1,008,695,976.30 and 328,090,216.20

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Solution

The fourth proportional to 672,463,984.20, 1,008,695,976.30 and 328,090,216.20 is: 492,135,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,463,984.20 : 1,008,695,976.30 = 328,090,216.20 : x
  2. Step 2: Convert to fraction form
    672,463,984.20/1,008,695,976.30 = 328,090,216.20/x
  3. Step 3: Cross multiply
    672,463,984.20x = 1,008,695,976.30 × 328,090,216.20
  4. Step 4: Simplify right side
    672,463,984.20x = 330,943,280,944,337,024
  5. Step 5: Solve for x
    x = 330,943,280,944,337,024/672,463,984.20
  6. Step 6: Final answer
    x = 492,135,324.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.